Next month, approximately 500,000 Walmart employees are expected to have their wage increased from $9 an hour to $10 an hour. This comes after the company announced in October that it would invest $2.7 billion into its workforce over the next two years. This means that as many as 1.2 million of its hourly employees in the U.S. could receive a wage increase.
See "Wal-Mart to Give Pay Raises to Most of Its Workers", New York Times, January 20, 2016